fork(1) download
copy 
  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. class klasa{
  7.     public:
  8.         static int total;
  9.  
  10.         int ilosc;
  11.         klasa(int n) : ilosc(n) {total += ilosc;};
  12.         //klasa(const klasa &drugi) { ilosc = drugi.ilosc; total += ilosc; };
  13.         //klasa& operator=(const klasa &drugi) { ilosc = drugi.ilosc; total += ilosc; return *this; };
  14.         ~klasa() { total -= ilosc;};
  15. };
  16.  
  17. int klasa::total = 0;
  18.  
  19. int main()
  20. {
  21.     vector<klasa> vec;
  22.  
  23.     int suma = 0;
  24.     for(int i = 100; i <= 500; i+=100)
  25.     {
  26.     	suma += i;
  27.     	klasa temp(i);
  28.     	vec.push_back(temp);
  29.     }
  30.  
  31.     cout << "Suma wrzuconych elementow: " << suma << " Rozmiar vectora: " << vec.size() << endl;
  32.     for (const auto& x : vec)
  33.     	std::cout << x.ilosc << "\n";
  34.  
  35.     cout << "before erase.. \n";
  36.     vec.erase(vec.begin(), vec.begin()+2);
  37.     cout << "after erase.. \n";
  38.     for (const auto& x : vec)
  39.     	std::cout << x.ilosc << "\n";
  40.  
  41.     cout << "vec.size() = " << vec.size() << endl;
  42.     cout << "klasa::total = " << klasa::total << endl;
  43. 	return 0;
  44. }
Success #stdin #stdout 0s 3412KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Suma wrzuconych elementow: 1500 Rozmiar vectora: 5
100
200
300
400
500
before erase.. 
after erase.. 
300
400
500
vec.size() = 3
klasa::total = -2300
https://ideone.com/Ndp4IN
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!